Very strange rash. PLEASE HELP!!!?

I have a strange looking rash on the top of my foot. 3 years ago a spot appeared on the top of my foot that looked like a ringworm. I treated it as such but it never went away. Instead it turned into a bunch of little bumps under my skin. It has not color and does not itch. In addtion to the bumps there are also two red spoltches that are above the skin. I have tried ringworm treatment and tea tree oil and those seem to worsen it. Any help to figure out what this really is would be appreciated.